Etched in Bone by Atlas Jones

Knox is an exemplary Templar of the Order, righteous and by the book, but when an amateur witch soulbinds him to the demon he’s hunting things get complicated. The secret that he’s been hiding his entire life–that he’s a nephilim–is suddenly the thing that’s killing him. His angelic blood is rejecting his demonic connection and, unless he finds a way to sever their soulbind, it’s going to tear him apart.

Dimitri has survived as long as he has in the mortal realm by keeping a low profile, but all of that ends the moment he’s soulbound to a Templar. Suddenly there’s someone in his head, a gods damned angel of all things, and he can’t separate what he’s feeling from what Knox is feeling. And when what he’s feeling turns to desire, burning so deep he can’t tell who it’s coming from, he knows he’s in trouble.